js + php 读取、播放视频流 兼容firefox，chrome，ie，mac的safari，ios的safari，ios的微信浏览器（curl读取文件流篇）

————————————2015-5-13————最新更新———————————————

由于jwplayer6已经完全无法正常工作，以下介绍的方法也已经失效，请更换视频播放插件，可以参考楼主的文章：

http://blog.csdn.net/snow_finland/article/details/45670683

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1、选用jwplayer6作为前端播放器

2、前端动态加载jwplayer视频盒子

3、前端加载的视频非视频的物理地址，而是通过php读取的视频流

4、php通过curl方式读取的视频流

加载视频盒子的部分js代码

function load_video_player(width,height,fileid,type,title,size){var player_w = width;var player_h = height;var isiphone;$.ajax({type: 'POST',url: 'devicecontroller.php',data: 'islink='+islink,dataType:"JSON",async: false,success:function(data){if(data.code == 1){isiphone = data.data;}else{isiphone = 0;}}});var file_path = '/XXX/url?fileid='+fileid+'&type='+type+'&title='+title+'&size='+size+'&isiphone='+isiphone;var player_wrap = ['<div id="J_video_container" class="video_container hide">','<div class="video_box">','</div>','</div>'].join('');var player_box = ['<div id="Jwplayer_box">Loading player...</div>'].join('');if($('#J_video_container').length==0){$('#J_video_main').append(player_wrap);}$('#J_video_container').css('height',player_h+'px');if($('#Jwplayer_box').length==0){$('#J_video_container .video_box').append(player_box);}$('.video_box').css({'width':player_w+'px','height':player_h+'px'});$('#J_video_container').show();jwplayer("Jwplayer_box").setup({'width': player_w,'height': player_h,'controlbar': 'bottom',"autostart":"true",'provider': 'video','type': 'mp4','file': file_path});}

其中请求检查设备和浏览器类型的devicecontroller.php代码

//json_encode中文乱码问题修正function arrayRecursive(&$array){  foreach ($array as $key => $value) {  if (is_array($value)) {  arrayRecursive($array[$key]);//如果是数组就进行递归操作  } else {  if(is_string($value)){  $temp1= addslashes($value);$array[$key]= urlencode($temp1);//如果是字符串就urlencode  }else{  $array[$key] = $value;  }  }  }  }  function JSON($result) {  $array=$result;  arrayRecursive($array);//先将类型为字符串的数据进行 urlencode  $json = json_encode($array);//再将数组转成JSON  return urldecode($json);//最后将JSON字符串进行urldecode  }require_once("Mobile_Detect.php");$detect = new Mobile_Detect(); if($detect->isiPhone() || $detect->isiPad()){if($detect->isSafari()|| $detect->isGenericBrowser()){//iphone和ipad上的safari或者微信浏览器$iphone = 1;}else{$iphone = 0;}}else{$iphone = 0;}$data['code']=1;$data['data']=$iphone;echo JSON($data);

加载视频流的php

session_start();$fileid = $_GET['fileid'];$isiphone = $_GET['isiphone'];$file_name = $_GET['title'];$file_type = $_GET['type'];$file_size = $_GET['size'];$cookie = $_SESSION['token'];//如果没有文件名，设置带扩展名的默认文件名if(empty($file_name)){$type =  substr($file_type,0,5);if($type == "video"){$type =  substr($file_type,6);$file_name = "downfile.".$type;}}header("Content-type: ".$file_type);if(isset($_SERVER['HTTP_RANGE'])){$http_range = $_SERVER['HTTP_RANGE'];$at = explode('=',$http_range);$at = explode('-',$at[1]);$start = $at[0];if($at[1]==null){$end = $file_size - 1;}else{$end = $at[1];}$length = $end - $start + 1;if($isiphone!=1){$url = "/XXX/url/".$fileid;$curl = curl_init();curl_setopt($curl, CURLOPT_URL, $url); curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE); // 对认证证书来源的检查     curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE); // 从证书中检查SSL加密算法是否存在        curl_setopt($curl, CURLOPT_HEADER, 0); curl_setopt($curl, CURLOPT_TIMEOUT, 30);curl_setopt($curl, CURLOPT_RETURNTRANSFER, false);curl_setopt($curl, CURLOPT_HTTPHEADER, Array($cookie));header('Expires: 0');header('Cache-Control: must-revalidate, post-check=0, pre-check=0');header('Pragma: public');header("Content-Description: File Transfer");header("Content-Transfer-Encoding: binary");Header("Content-type: ".$file_type);Header('Content-Disposition: attacurlment; filename="'.$file_name.'"');Header("Content-Length: ".$file_size);ob_end_flush();flush();$result = curl_exec($curl);curl_close($curl);}else{header("Accept-Ranges: 0-$length");set_time_limit(0);header("Content-Range: bytes $start-$end/$file_size");header("Content-Length: $length");$url2 = "/XXX/url/".$fileid;$ch = curl_init();curl_setopt($ch, CURLOPT_URL,$url2);curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);curl_setopt($ch, CURLOPT_HEADER, false);curl_setopt($ch, CURLOPT_HTTPHEADER, Array($cookie));curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); // 对认证证书来源的检查     curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE); // 从证书中检查SSL加密算法是否存在  curl_setopt($ch, CURLOPT_TIMEOUT, 600); $content = curl_exec($ch);curl_close($ch);$output = substr($content,$start,$length);echo $output;exit;}}else{$url = "/XXX/url/".$fileid;$curl = curl_init();curl_setopt($curl, CURLOPT_URL, $url); curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE); // 对认证证书来源的检查     curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE); // 从证书中检查SSL加密算法是否存在        curl_setopt($curl, CURLOPT_HEADER, 0); curl_setopt($curl, CURLOPT_TIMEOUT, 30);curl_setopt($curl, CURLOPT_RETURNTRANSFER, false);curl_setopt($curl, CURLOPT_HTTPHEADER, Array($cookie));header('Expires: 0');header('Cache-Control: must-revalidate, post-check=0, pre-check=0');header('Pragma: public');header("Content-Description: File Transfer");header("Content-Transfer-Encoding: binary");Header("Content-type: ".$file_type);Header('Content-Disposition: attacurlment; filename="'.$file_name.'"');Header("Content-Length: ".$file_size);ob_end_flush();flush();$result = curl_exec($curl);curl_close($curl);}

补充说明：

1、在js中请求判断一次设备，并通过js传递给php读取视频流，而不是在php端读取视频流时每次判断设备：
因为ios safari在第一次（会设定$_SERVER['HTTP_RANGE']）请求的时候，能判断出是ios的safari设备

在第二次以及之后的请求时，无法判断出是ios的safari设备

2、判断是否是ios的safari，在之后的文章中介绍